clang-tidy: fix `bugprone-parent-virtual-call` lints

Domains/Chemistry/vtkMoleculeMapper.h

@@ -279,7 +279,7 @@ public:
   void Render(vtkRenderer*, vtkActor*) override;
   void ReleaseGraphicsResources(vtkWindow*) override;
   double* GetBounds() override;
-  void GetBounds(double bounds[6]) override { vtkAbstractMapper3D::GetBounds(bounds); }
+  void GetBounds(double bounds[6]) override { Superclass::GetBounds(bounds); }
   int FillInputPortInformation(int port, vtkInformation* info) override;
   bool GetSupportsSelection() override { return true; }
   ///@}

Rendering/Annotation/vtkCubeAxesActor2D.h

@@ -383,6 +383,7 @@ protected:
 
 private:
   // hide the superclass' ShallowCopy() from the user and the compiler.
+  // NOLINTNEXTLINE(bugprone-parent-virtual-call)
   void ShallowCopy(vtkProp* prop) override { this->vtkProp::ShallowCopy(prop); }
 
   vtkCubeAxesActor2D(const vtkCubeAxesActor2D&) = delete;